Node edit – enables you to validate content while adding or editing nodes without having to leave the node edit form or saving the node. (node edit demo)

Block – Provides a block to validate any page on your site including themed nodes, views, panels and coded pages. (block demo)

Admin form – provides additional analysis input options including a text area for validation of free form content, a URL input enabling analysis of any accessible page on the web, and a node id input for analysis of saved nodes. (admin form demo)

The goal of the module to help you create content that doesn't break across browsers, is accessible and improves your Drupal SEO rankings.